<div class="demo">
  <div class="demo-space">
    <button nz-button nzType="primary" [nzLoading]="true">保存</button>
    <button nz-button nzType="primary" [nzLoading]="true" nzSize="small">
      保存
    </button>
  </div>
  <div class="demo-space">
    <button nz-button [nzLoading]="loading1" (click)="load1()">点我试试</button>
    <button nz-button [nzLoading]="loading2" (click)="load2()">
      <i nz-icon nzType="poweroff" nzTheme="outline"></i>
      点我试试
    </button>
  </div>
  <div class="demo-space">
    <button nz-button nzType="primary" [nzLoading]="true" nzShape="circle">
      <i nz-icon nzType="poweroff" nzTheme="outline"></i>
    </button>
    <button nz-button [nzLoading]="true" nzShape="circle">
      <i nz-icon nzType="poweroff" nzTheme="outline"></i>
    </button>
  </div>
</div>
